Hi @derkopp
Thanks for your question!
Is there any way how I can add additional fields (custom_label1-4) to the product feed generated by the plugin, so that I can create collections based on those labels?
I understand that as Facebook says, it’s possible to add custom label to the feed used to synced products into Facebook catalog:
For example, you could add a custom_label_1 column in your data feed to indicate items for the summer season.
However, the feed generated by Facebook for WooCommerce at the moment can’t be modified to do so.
I am wondering, alternatively, if you want to try to create a collection based on category on WooCommerce as explained here instead.
I hope that helps!
If you have any other questions, do not hesitate to let us know!